Please note that these
instructions are intended as a convenience for experienced
technicians. I am unable to supply troubleshooting help, parts or
additional service information on this equipment.

** NOTE: Use the "10"
Key whenever it is necessary to enter a 0, since the keyboard has no zero digit key. **

1- First, make sure radio is ready to be programmed. To do
this, turn radio off and solder a jumper at point J401; this
jumper point is located just forward of the large IC on the main
circuit board, and is next to the diode in that area. The jumper
runs lengthwise in a front-rear direction at this spot; the board
should have printing at this spot saying "J401" or
"JU401". Any reference to J401 or JU401 refers to the
same thing.

2- Turn the radio on, and press the PRO PRIOR
key and then the 10 key, in that order.

3- Enter the receiver frequency (six digits) without any
decimal point

6- Enter receiver ctcss (PL) tone code (two digits, see chart
below), then follow with transmitter ctcss (PL) tone code (2
digits). The transmitter PL tone code does not need to be entered
if the mode in step 4 selected was SIMPLEX and the tone is the
same as the receiver's. The transmitter PL tone code MUST be
specified if the mode selected in step 4 was DUPLEX.

7- Enter transmitter frequency (6 digits) without any decimal
point. Does not need to be entered if a SIMPLEX channel was
selected in step 4.

8- Press ENTER on the keyboard.

9- Press the channel number the data is to be entered into.
Repeat as necessary for each channel to be programmed. NOTE:
For 16 channel radios, the second digit of the channel number
must be pressed within three seconds or the radio will think you
intend to program channel 1 instead of the actual entry !

10- Delete any unprogrammed channels by pressing the DELETE button on the keyboard, followed by the ENTER button, and then the channel to be deleted.
If deleting more than one channel, the DELETE
button only needs to be pressed once followed by the ENTER button, and then the channel number
sequence for each channel to be deleted.

THIS COMPLETES THE CHANNEL PROGRAMMING STEPS. IF
IT IS DESIRED TO CHANGE THE OPTIONS PROGRAMMING, (ONLY AVAILABLE
ON THE RH256 16 CHANNEL RADIOS) CONTINUE AS FOLLOWS:

A- Pick a scan delay code and press one of the following keys:
0 for 0.68 seconds, 2
for 1.3 seconds, and 4 for 2.0 seconds.

B- Pick a time-out transmit timer limit and press one of the
following keys: 0 for none, 1
for 30 seconds, 2 for 60 seconds, 4 for 120 seconds.

C- Choose the normal decoder interrupt time (i.e. built in
PL). Press the 0 key.

D- Press ENTER then press SCAN
. Display should show a "U".

Reviewing the program:

To review the programming job, the radio must still be in the
programming mode. Review is the same for all radio models,
including RH250 and WH2516.

To review, press the MANUAL button on
the keyboard. Then press the channel number to be reviewed. Note
that when reviewing channel 1 on a 16 channel radio, a 1 will
flash in the tens digit. This is not part of the channel's
program; the radio is just waiting for the second digit entry for
channels 11 through 16.

The radio will display, using the left digit on the channel
display, the programmed data for the selected channel. Each data
digit is displayed for two seconds, starting with the receiver
frequency through to the transmitter frequency in the same order
the channel is programmed.

Reviewing the radio options configuration (16 channel radios
only) is done by pressing the MANUAL button
on the keyboard followed by the SCAN
button. The left digit on the channel display will read out: the
scan delay code, the time out timer delay code, and a zero, in
that order (each code displays for two seconds).

TO EXIT THE PROGRAMMING MODE, TURN THE RADIO
OFF AND THEN REMOVE THE JUMPER AT JU401. PLEASE NOTE THAT
FREQUENCY CHANGES OF GREATER THAN THREE MHZ WILL PROBABLY REQUIRE
REALIGNMENT OF THE RECEIVER FRONT END STAGE, AND THE TRANSMITTER
MAY ALSO REQUIRE ALIGNMENT TOUCH-UP. THE RADIO WILL NOT FUNCTION
PROPERLY UNLESS THE JUMPER IS REMOVED !

Note: The radio will only scan when the mike is
hung up on a grounded microphone clip. If you pick up the mike
during scan, scan stops. You will need to run a ground wire to
the microphone clip when the clip is mounted on a plastic or
insulated surface. If encountering scan difficulties, make sure
that channels have or have not been locked out of the scan list,
which is a user front-panel programmable function.

PL TONE CODES:

none = 00

67.0 (XZ) = 01

71.9 (XA) = 02

74.4 = 03

77.0 (XB) =04

79.7 (WB) = 05

82.5 (YZ) = 06

85.4 (YA) = 07

88.5 (YB) = 08

91.5 (ZZ) = 09

94.8 (ZA) = 10

97.4 (ZB) = 11

100.0 (1Z) = 12

103.5 (1A) = 13

107.2 (1B) = 14

110.9 (2Z) = 15

114.8 (2A) = 16

118.8 (2B) = 17

123.0 (3Z) = 18

127.3 (3A) = 19

131.8 (3B) = 20

136.5 (4Z) = 21

141.3 (4A) = 22

146.2 (4B) = 23

151.4 (5Z) = 24

156.7 (5A) = 25

162.2 (5B) = 26

167.9 (6Z) = 27

173.8 (6A) = 28

179.9 (6B) = 29

186.2 (7Z) = 30

192.8 (7A) = 31

203.5 (M1) = 32

210.7 (M2) = 33

218.1 (M3) = 34

225.7 (M4) = 35

233.6 = 36

241.8 = 37

RELM RH-256N RADIOS:

Please note that the new RELM RH-256N does not program quite
the same way as the earlier Regency and Wilson radios. It is
intended to be programmed with an IBM PC and a special cable
which attaches to the microphone socket and connects to the
serial port of the computer. Special programming software is
required. However, this model can evidently still be manually
programmed as in the earlier versions, according to e-mail I have
received. The procedure is the same, but after installing the
jumper mentioned in Step 1 above, it is not necessary to next
depress the PRO PRIO or the 10
keys as instructed in Step 2. A "P" will show in the
display as soon as power is switched on following installation of
the jumper, and programming then follows the rest of the
instructions above.